Glen has written novels, plays for radio, for the stage and non-theatre locations, performed by rehearsed and unrehearsed actors and by members of the public who are also the audience. Projects include Wedding, Free Show (bring money) and Die or Run with Hannah Ringham, Hide with Lizzie Clachan, Unpack with Neil Bennun and Hello for Dummies and Romcom with Ant Hampton. His radio plays for BBC Radio 4 include Listen Up, Six Impossible Things, Occupied, The Long Count and a two-part adaptation of The Arabian Nights. His debut novel, The Outgoing Man, launched Portobello Books in 2005 and was shortlisted for the Authors' Club Best First Novel Award.

Glen Neath and David Rosenberg have been collaborating since 2012. Previous shows Ring (2013) and Fiction (2015), both produced by Fuel, toured extensively and had several sell-out runs in London.